Page 42, added missing period after "Rev" in "Rev. F. J. Swift."

Pages 43 and 44, normalized "DeGraff" to "De Graff" for consistency.

Page 49, changed "$1800" to "$1,800" for consistency.

Page 53, converted oe ligature to oe in "Koeberl" for Latin-1

compatibility; HTML edition retains ligature.